Storage-battery plate.



A. L. CHAMBERLIN.

STORAGE BATTERY PLATE.

APPLICATION HLED MAY 31, 19:1.

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To all whom it may concern: 4 Be it known that I, ALBERT L. CHAMBER- I LIN, a citizen of the United States, residing at Des Moines, in the county of Polk and State of-lo'wa, have invented a certain new and useful. Storage-Battery Plate, of which the following is a specification.

My invention relates to that class of storage. battery plates in which the actii'e material is "retained Within a frame or gridconiposed of electrical conductingniaterial.

The object of my invention is to provide a battery plate of simple, durable and inexpensive construction which may be readily, quickly and easily made and assembled and in whichv the active material is readily accessible by the battery acics or electrolytes;

and also in which the active material is per-- manently retained in position within the frame or grid so that in the .event that it should become softened it cannot escape lfrom the frame or grid and become deposited in the bottom of the cell in which the battery is contained and to thereby provide a battery plate especially desirable for use in connection with automobiles for the reason that the active material cannot be dislodged from the plate by shaking or jarring even though it should become soft.

My invention consists in certain details, in the construction, arrangement and combination of. the various parts of the device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my'clairo. and illustrated in the accompanying drawings, in which? Figure 1 shows a side elevation of a battery frame or grid embodying my invention. Fig. 2 shows a vertical, central, ,ec-tional view of same. Fig. 3 shows an enlarged, detail, sectional view of portion of same in the modified form. Fig. 4 shows a front elevation of one of the porous retain the active material in ii Fig. 6 shows a plan view of form of porous reta' shows a side elevation of same.

Referring to the it will be seen that r plate is formed of tions. each section number of transx having on their inner i ll. Each frame with a terminal we:

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cent to each other. These frames or grids are imade of material that is a good conduct 0r of electricity and that will not vbe affectedloy the battery acids or electrolytes.

'"WVithin each of the rectangular spaces formed by the strips 10, I place a plate 13 made of porous material and having itsedges beveled to fit the inclined ribs 11;

'Theseplates 13 may be made of porous tile material or any other porous or perforated material that will not be affected by the stances, I also employon the said porous plates a rib 15 extending outwardly, from the platej13 to a point slightly beyond the outer surface of the'fraine or grid so that either plastic or dry form is placed in the frame or grid to completely fill the space between the plates 15 and the narrow edges of the ribs 11. The composition employed in this active'material does not of itself comprise any part of this invention and any of the well known active materials for this purpose may be employed. After the two frames or grids are thus filled with the active material, I place asheet of material such, for instance, as lead, indicated bythe numeral 16, between the two frames or grids and then permanently connect the two frames or grids by burning them together at suitable intervals or in any other desirable and ordinary manner so that the frames or grids are firmly held together and are also connected electrically. By this means the sheet lead plate is'firinly held in "electrical contact with the grids at many points and it is also held in position'in the center of the active material so that the current of electricity flowing throiigh the battery plate will distributed evenly throughoutthe entire amount of active material thus increasing the capacity of the battery plate both to receive electricity and to discharge it. In Fig. 2 vertical line indicates the plate i l but the view is on too small a scale to show this thin rest in section.

in i1: nmdified form shown in Figs. 6 an d action of acids or electrolytes. In some in of the drawings. the small nected by burning or any other ordinary til the action of ecidJand' that will also be porous enough to permit electrolyte tol'penetrate it without permitting theactive materialto leak through. Dne advantage of this form er platens that it is inexpensive and oanhe-made-quite'thin and is not easily rckehw' I I in practieiih liws obvious that the two frame or gri'dsec ons-may be molded in the ordinary manner Sf'the ofdinany inamemes I It is obvious that my improvement adds plates. Funther," the said active material ,the plate because it is Wholly inclosed in the frame or grid and ,between the porous plates. Hence the lifeof a battery constructed of such plates is practically unlimited.

I-claim as my invention: i An improved battery plate, comprising cannot in any way become detached from two frames or grids, made of conducting material, a series ofporous plates made of nonconducting material fitted Within the terialsused for'this purpose and then eac'r" frames or grids and a layer of active mairame or grid maybe laid on a flat support and the porous plates may be readily and quickly placedin the rectangular spaces of the frames or grids between the ribs 11;

then the active material may he placed in;

position in the ordinary. manner and the sheet of lead placed on top of one frame or grid and the other frame or grid placed on top of the sheet of lead and then the edges may be electrically and mechanically conmanner.

Qteiiabhetw een the frames or grids in electric contactWith bo th frames or grids, said frames orgiids h e1ng -in &lectric contact with each other" anda thin layered electric of the active material andif electric contactwith both frames or grids.

Des Moines, Iowa, May 24s, 1911.

' ALBERT L. GHAMBERLIN. Witnesses:

M. WALmoe, M. -PETERSON.

conducting material ai'ianged in the Fenten 

